Planer



Dec. 10, 1946. P. s. JACKSON PLANER- Filed Nov. l5, 1945 8 Sheets-Sheetl Dec.l 10, 1946. P. s. JACKSON PLANER Filed Nov. 13, 1945 8Sheets-Sheet 2 INVENTOR. Had 5. Jacfwom .mNlLlv Dec. 10, 1946.

P. S. JACKSON PLANER Filed Nov. -13, 1945 v8 Sheets-Sheet 5 fm, o In@ M.P

Dec.y l0, 1946.

P. s. JACKSON PLANER Filed Nov. 13, 1943 asneets-s'heet e INVENToR.M6072 Dec.v 10, 1946. P. s. JACKSON 2,412,337

' PLANER Filed Nov. '13, 1943 e sheets-sheet 7 w@ O@ Y I ze. ,t

IN VEN TOR.

Dec. v10, 1946.

P. s. JACKSON 2,412,337

PLANER Filed Nov. 15, 1914s a sheets-sheet s INVENTOR.

BY am @W Patented Dec. 10, 1946 PLAN ER Paul S. Jackson, Rockford, Ill.,assignor to Jackson Hydraulic Machine Co., Inc., Rockford, Ill., acorporation of Illinois Application November 13, 1943, Serial No.510,092

21 Claims.

It is the general object of the invention to provide a new and improvedplaner of simple construction and efficient operation.

Another object of the invention is to provide a planer with new andimproved frame elements such as the bed, table and columns, constructedlargely from standard metal shapes, welded together.

Another object is to provide a planer embodying spaced columns and across rail therebetween, together with a plurality of tool supports onsaid columns and rail, and novel and simplified mechanism for actuatingsaid parts and for controlling the actuationV thereof.

Another object is to provide a planer having a plurality of toolsupports with new and improved means for actuating the supports at feedand traverse rates, and control mechanism selectively operable todetermine the operation of each tool support.

Another object is to provide a planer with new and improved mechanismfor feeding and traversing one or more tool supports.

Other objects will become readily apparent from the following detaileddescription, taken in connection with the accompanying drawings wherein:

Fig, 1 is a front elevation of a planer embodying the invention.

Fig. 2 is a fragmentary side elevation (looking at the right-hand sideof Fig. 1).

Fig. 3 is an enlarged fragmentary side elevation of the right-hand endof the cross rail, with parts broken away and in section on the line 3-3of Fig. 4.

Fig. 4 is a fragmentary section along line 4-4 of Fig. 3.

Fig. 5 is a fragmentary section along the line 5-5 of Fig. 3.

Fig. 6 is a fragmentary plan View of the parts of Fig. 3, partly insection, along line 6--6 o-f Fig. 3.

Fig. 7 is a fragmentary vertical section along the line 1 -'1 of Fig. 3.

Fig. 8 is a fragmentary section along the line 8 8 of Fig. 3.

Fig. 9 is an enlarged fragmentary front elevation of the lowerright-hand tool supportin Fig. 1, partly in section along line 9-9 ofFig. 11.

Fig. 9a is a fragmentary section along line 9ct- 9c of Fig. 9.

Fig. 10 is a view, partly in section, along line IIJ-I0 of Fig. 9.

Fig. 11 is a view, partly in section,` along line H-II of Fig. 9.

Fig. 12 is a view, partly in section, along line |.2-I2 of Fig. 10.

Fig. 1.3 is an enlarged fragmentary vertical section approximately alongline 13-13 of Fig. 2.

Fig. 14 is a section along line 14-14 of Fig. 13.

Fig. 15 is a horizontal section along line 15-15 of Fig. 14.

Fig. 16 is a plan section approximately along line Iii-I6 of Fig.y 14.

Fig. 17 is a fragmentary section approximately along the line l'l-l 'lof Fig. 16.

Fig. 18 is a fragmentary front elevationa1 view of the feed-traversemechanism with a cover plate removed.

Fig. 19 is a fragmentary section along the line l9-I9 of Fig. 18.

Fig. 19a is a section along the line 19a-19a of Fig. 19.

Fig. 20 is a View along the line 20-20 of Fig. 18.

Fig. 21 is a vertical section through the righthand cross rail tool headalong line 2|-2I of Fig. 1. Y

Fig. 22 is a fragmentary view, partly in section, along line 22--22 ofFig. 21.

Fig. 23 is a fragmentary vertical section through the left-hand crossrail tool head along line 23-23 of Fig. 1.

Fig. 24 is a fragmentary view, partly in section, along line 24-24 ofFig. 23.

While there is illustrated in the drawings and hereinafter described, apreferred form of the invention, it is contemplated that variousmodifications may be made by those skilled in the art without departingfrom the spirit and scope of the appended claims.

In the form illustrated, the invention comprises, generally, a bed 30, atable 3| reciprocably mounted on ways 32 thereon, columns 33 and 34extending upwardly from opposite sides of a somewhat central portion ofthe bed, a crosshead 35 between the upper ends of the columns, a crossrail 35 slidable vertically on the columns, and tool supports 31, 38, 39and 40 mounted on the columns and cross rail. The bed 30, table 3l,columns 33 and 34 and other parts of the planer are preferablyfabricated from standard metal shapes, i. e., I-beams, angles, plates,channels, etc., welded together, as more fully disclosed in myco-pending application Serial No. 512,154, led November 29, 1943. Thetool supports may embody reversible tool holders with cutters 4| of thetype disclosed and claimed in my co-pending application Serial No.510,091, led November 13, 1943.V

The cross rail 36 may be adjusted vertically on 3 the columns 33 and 31|by means of vertical screws 42 and i3 which engage suitable nuts (notshown) in the opposite ends of the cross rail. The screws i2 and 43 arearranged to be actuated simultaneously at feed or traverse speeds bymeans of mechanism illustrated partly in Figs, 13 to 20, `and.hereinafter described in' more detail. These screws may valso bedisengaged from the feedtraverse mechanism and then serve as stationarylead screws for actuating the `tool supports 31 and 38, as hereinafterdescribed. The means for actuating the tool supports 39 and 39 will bedescribed rst.

The tool supports 39 and 46 areslidable trans'- versely of the planertable as Viewed in Fig. 1` (simultaneously or independently) and at feeand traverse rates. Furthermore, the tool supports carry swivel bases(el (Figs. 1 andv 21) on which are mounted tool slides 45 which aremovable diametrically of the swivel bases, simultaneously orindependently, and at feed and traverse speeds. The means for actuatingthe `tool supportsand tool holders includes splined shafts 41' and 45(for-'the support 59 and its slide 45, respectively) andsplined shafts48 and :i9 (for the support 39 and its slide 35, respectively).

` These Vsplined shafts are arranged to be'drivenl at feed and traversespeeds by a.feed'-traverse mechanism designated generally 59 (Figs. 1, 2and 13), a` vertical splined shaft'5, and gearing designated generally52 (Figs. 1 to 3). Y

The' connections from thesplined shaft 46 to the tool slide 45 on thesupport lilare'shown in Figs. 21 and 22. A gear 53 is splined to theshaft 4t and' is confined in a bracket |59, v,carried on support 43, Vtomove laterally with thatlsupDOrt. A gear meshes with gear .53 andisrotatably mounted on bracket |59, concentric with shaft" M.

Gearl5lhasan integral beveledgear portion |52 1 which meshes with' abeveled gear 54 on a, short shaft 55 which carries a second beveled gear5S. i

Gear 55 meshes with a gear 5l which is rotatablyY supported on an axisextending radially of the swivel base .d4 and is splined internally at55 onto a -feed screw' 59. The screw 59 isrotatably supported at itsends on the tool slide in bearings Eiland 6 9', andengages anon-rotatable nut`6| supportedon the swivel base 44. A hand wheelV 52 isprovided for adjusting the tool slide v manually. Thus, the tool slided5 on the'supportiil'rmay beactuated in a direction radially i ,ofitsswivel base eli by operation of the splined shaftj.

For moving the supportliplaterally on the cross rail 36, the splinedshaft' (Figs. 5, 21 and g2- 2) Y-carriesa gear Y|53 splined thereon andcon- 1 fine-d between laterally spaced portions of Va Gear |53 bracket|54-carried on the" support 4Q. mesheswith a gear |55 f'ormed'integralwith a vnut |56-' which engages a feed screw |51 stationarily mounted onthe cross rail 35. The gearnut |55, |56 is also rotatably mountedl onthe vbracket |55,V as'shown best in Fig. 5. Thus, by

operating the splined shaftV M, the tool headV 49 ,Y

may b e moved to the right or to the left from the position illustratedin Fig. 1, depending upon theV direction of rotation ofthe shaft 41;

vThe, tool; support 39 (Figs. 1, 23 and 24) carriesy partsgduplicatingthose onfthe'support el), as il- V,

lustrated-in Fig. 22,.Y This` support is arranged to bemovedllaterallyon thecross'railb-y means of l va-nuti' 16| which is `threaded on thestationary feed screw |5lg'and is rotatably supportedin va bracket .|59carried on the Ysviupport .33,.f The nut it il is :arranged-'toberotateditmove niej suppbrt.

in Figs. 2. andv 3.

4 As shown, the nut is formed integrally with a gear |69 which mesheswith a gear |58, splined on the shaft 48. The gear |58 is conned betweenopposed portions of the bracket |59 so as to move with the support 39.Thus, the connection between the shaft i3 and the feed screw |51 issimilar to that shown in Fig' for the tool support e9.

The tool slide 5 on the tool support 39 (Fig, 1) is arranged to beactuated by screw and nut mechanism similar to that shown in Fig. 21 onthe tool support d0. The connections from the beveled gear 53 on theshort shaft 55 are slightly different, because the axis of the shaft 55for the toolsupport 319`r is in the same horizontal plane as that forthe tool support 49. Thus, as shown in Figs. 2'3y and 24, thebeveledgear 54 meshes with a. beveled gear |52, which is rotatably mounted in abracket |53 carried on the support 39 in a position concentric with theshaft lll, Agearr |54 is formed' integrally with'bevele'd gear` |62, andmeshes with an idler gear |65, rotatably mounted t rive their powerfrornthe vertical splined shaft 5i. A meansfor selectively connectingthehori- Zontal splined shafts 53 to 5to the vertical splined shaft 5ifor simultaneous or independent actuation of the toolfsupports andslidesis joomprised in the gearing 52 (Figs, l Vto 4l)` whichV gearingwillfnowbe described.

As illustrated herein, Vthe splined shafts of the cross rail arerotatably ijnounted'l inv and extend` through the ends 'i9 and it of thecrossrail to terminate in. squared! ends as'shown in'Figs. 1 and 4: Theshaftsareparallel to each other but are arranged along the arc of acircle, as shown Pairs of? pinions l2l are splined to the shafts and areshiftableto-the right Vand left from the neutral positionsv shown inFigs. 4 and 6 to 8, so as to be engageable with either of large. gears 73 and. 73. These gears are rotatably supported onjthe cross rail and, asshown ybest in Fig.vv 7., carry! beveled gears 'l5 and 'i5-,fixedthereon, which mesh with a common pinion?! which i's rotatably supportedon thercross rail'and is splined to the shaft 5|. Thus, when the shaftYl'is rotated, the large gears 73 and' "ilrotatein opposite directionsand provide for forward and return movements .of the tool supports-'andvslides when the pinions 'l2 areengaged withoneror the other of thegears i3 and 13.

In order Vto shift the pinionslZ', each is provided with an annulargroove l'finwhich a yoke 'I9r (Figs. 6 ande) is engaged. The yokes areAcarried on horizontally slidable pins (Figs. 3 and 6) which have rackVteeth 8| thereon. Control handles 32, 83, 813 and @Flare swingablymounted on Aa common vertical'pivot'rrpint` and have Vsegmental gearportions Sl meshing. with.Y the rack teeth.4 As viewed in Fig. 6,.thecontrol4 handle 52 may be swung to theleftfto engage the pinion'izgwith gear ligand to .the right to engage the 'pinion with the gear'13. VThe control. lfemalesfor f dependently Voperable so that thesupports and slides may feed.(or traverse) in like 4or oppositedirections, or remain idle, depending upon the selections made by theoperator of the machine.

The splined shaft 5| is arranged to be rotated at feed speeds, but in asingle direction, in View of thel reversing devices incorporated in thegearing 52. For convenience, the shaft 5| is arranged to be driven inforward and reverse directions at a traverse speed, by reversing thetraverse motor hereinafter described. The actuation of shaft 5I at feedand traverse rates is accomplished by the feed-traverse mechanism 50(Figs. 1, 2 and 13 to 20).

Referring now to Figs. 13 and 15, the feedtraverse mechanism includes ahorizontal shaft 90 extending from the mechanism 59 (Fig. 1), throughthe bed 3i! o-f the machine, through a casing 9| and into a casing 92. Abeveled gear 93 on the left-hand end of the shaft meshes with a gear 94on the lower end of a vertical splined shaft 95. As shown in Fig. 13, abeveled gear 96, splined and screwed onto shaft 39 adjacent therighthand end thereof, meshes with a gear 91 on the lower end of splinedshaft 5|. Thus, the splined shafts 5| and 95 are driven simultaneouslyby the shaft 99, and at the same rate of speed (the gear sets 93, 94 and96, 9T being of the same ratio) for a purpose hereinafter more fullydescribed in connection with the tool supports 37 and 38.

The shaft 99 is arranged to be driven at a relatively high or traversespeed by means of a traverse gear lill] (Fig. 13), which is loosethereon, and a jaw type traverse clutch I0 |92 which is engage able todrive the shaft 96 from gear Hill. The jaws of this clutch are hereinshown formed on the gears 96 and |99. The gear |99 may be driven at aconstant speed by an electric motor 392 (Figs. 1 and 18) by means of apinion 392 on the motor shaft and a wide idler gear 392 meshing with thepinion and with the traverse gear IEl.

Shaft 99 is arranged to be given an intermittent and relatively slowfeed movement by means inl cluding a jaw type feed clutch |93, |54(Figs. 13, 15 and 19) the element |93 of which is splined to andslidable on the shaft 9i), and is urged to the right (Fig. 13) by acoiled spring |95. The clutch element ||l4`is formed integrally with aspur gear |99 which is rotatable on the shaft 99 and held between acollar |97 and a hollow hub U8 formed on a cylinder |99. The gear |06meshes with a pair of larger gears H9, Hi (Figs. 14 and 15) which, inturn, are mounted on shafts H2, H3,

respectively, by means of overrunning clutch devices |25 and |21.Pinions H4, H5, fixed on said shafts, respectively, engage racks H5, Hlwhich are slidable vertically on opposite sides of the cylinder |09 inguideways HB', H1. At their upper ends, the racks are secured to acrosshead H8 by means including screws H9. This crosshead is carried ona hollow piston rod |29 which has a piston |2l secured to its lower endand slidable in the cylinder |99. The stroke of the piston and its rodis adjustable and under the control of a vertically adjustable stopblock |22 (Fig. 13) which is slidably supported in a hollow head |23secured to a casing |24 which encloses the feed-traverse mechanism. Theblock |22 is screw-threaded and mounted on a screw |22', the upper endof which has a hand wheel |24. The screw |22 extends downwardly into thehollow piston rod |28. A screw device |25 is provided to look the screw|23 in its adjusted position.

The meansijust described for giving the shaft an intermittent feedmovement includes the overrunning c1utches|26 and |21 (Fig.` 15)connecting the gears H0 and Hl to the shafts H2 and I |3, respectively.These overrunning clutches may be of a form welll known in the art,adapted to transmit power in one direction of rotation and to overrunwithout transmitting power in the opposite direction. The clutches arearranged so that when the racks H6, H1 move upwardly (Fig. 14), theclutch |26 functions to drive the shaft H2 while the clutch |21 overrunsidly on the shaft H3. When the racks H6, H1 move downwardly, clutch |21functions to drive the shaft H3 and clutch |26 overruns idly. Thus, theshaft 90 is driven intermittently in a single direction of rotation, butalternately, by the gears H0 and Hl.

To provide for fewer feed movements of the shaft 39 for each up and downmovement of the piston |2|, means is provided for disengaging thepinions H4 and H5 from their associated racks H6 and Hl. As shown bestin Figs. 15 to 1'7, the pinions H4 and H5 are provided with yoke grooves|39 which are engageable by yokes |3| carried on arms |32. These armsare secured to pivot pins |33 which carry operatinghandles |34 on theirupper ends.

It is contemplated that the table of the machine will be reciprocated byfluid under pressure operating on piston and cylinder devices, one formoving the table in a forward direction and the other for moving thetable in a return direction,

as disclosed in said copending application Serial v No. 512,154, filedNovember 29, 1943. The upper end of the feed cylinder |39 ispreferablyconnected continuously to a source of fluid under pressurewhich urges the piston |2| downwardly therein. At the end of the forwardmovement of the table, fluid under like pressure is admitted to thelower end of the cylinder |98. Since the area of the lower end of piston|2| is approximately double the area of the upper end of the piston, thepiston is thus moved upwardly by a differential action at the end ofeach forward stroke of the table. This pressure o-n the lower end of thepiston is maintained during the return stroke, at the end of which it isremoved, permitting the fluid under pressure on the upper end of thepiston to return it downwardly. Thus, the feed cylinder will be actuatedat each end of the table movement. This arrangement is desirable whenthe planer is set up with reversible tool holders (as illustrated inFigs. 1 and 2) having forward and return stroke cutting tools 4|. If themachine is set up with tools arranged to cut only when the table movesin a forward direction, the pinion H4 (vor the pinion H5, as the casemay be) can be disengaged from its actuating rack by means of theappropriate handle |34, so that the shaft 99 (assuming the feed clutch93, |94 to be engaged) will be given a feed movement only at one end ofthe table movement, generally at the end of the return stroke thereof.

In the form illustrated herein, the cross rail feed screws 42 and 43(Fig. 1) are also arranged to be driven from the traverse drive gear |63(Fig. 13) for elevating and lowering the cross rail. As shown in Fig.13, the left-hand end of gear |99 forms one element |31 of Va jaw typeclutch, the other element |38 of which is formed integrally with abeveled gear |39, rotatably supported in the casing |24 by bearings |49.Gear |39 meshes withV a gear |4| splined on the lower end of the feedscrew 43. 'I'he drive for the feed screw 42'includes a sleeve |42 whichsurrounds amasar aportion of the shaft 30, and-.at its right-hand end`(Fig- 13) has a splined connection at |43 withthe gear |39. The.left-hand end of the sleeve |42 has a similar splined connection with abeveled gear |44 (Fig. 1) which meshes with agear |45-Xedto the lowerend of feed screw 42. With thev clutchl31, |38v engaged, the cross railmay be raised and lowered by operating the traverse motor in rforwardand reverse directions. The tool supports 31 and 38, with the excepftion of being left-hand and. right-hand, are substantially the same` inconstruction, so only the right-hand tool support 38 will be described.

As illustratedin Figs. 1 and 9 to 12, the support 38V is slidable onwaysy |15 on the column 34, and may be clamped in its adjusted positionby tightening the gib screws. A nut [1l is rotatably mounted on thesupport 38 in a bracket |12 (Fig. 9a), and engages the feed screw 4.3;This nut has a pinion |13 thereon meshing with a pinion |14 fixed on aparallel, vertical shaft |15. A beveled pinion |10, integral with pinion|13, meshes with a beveled gear |11 on a horizontal shaft |18 whichextends beyond the support 4to present a squared end |19 (to facilitatemanual adjustment of the tool support).

For power actuation of the support 38, a pair ofgears |38 is splinedonto the shaft |18 and is shiftable thereon for engagement with eitherof gears |8| (Fig. 12) or |82. A yoke |83 engages the gears |80 and iscarried on a horizontally slidable rod |84 which has rack on. A controlhandle |86 is pivotally mounted on a pin |81 and secured to a segmentalgear 88 which` meshes with the rack teeth |35. The gears |8| and |82 arearranged to be driven in oppon site directions from the vertical splinedshaft Thus, as shown in Fig. 12, gear |81 is secured to a beveled gear33, rotatably supported on a fixed shaftV 3i. The gear |82'is carried ona beveled gear |82 rotatably supportedon a concentric, fixed shaft |33.A beveled gear |612, rotatably mounted' on a. bracket or casing .|95 onthe supr port 36, is slidably splined to the shaft 5i and Vmeshes withthe beveled gears |38 and |92.

As illustrated in Figs. 1 and 2,-thetool support 38 is provided with aswivel base 44 and agtool slide 45, the same as the tool supportNillustrated in detail in Fig. 2l.V The showing of the swivel base, toolslide, etc., has been omitted in Figs. 9-to 11 because they areduplicates of the corresponding parts illustrated in Fig. 21. Thus, inFig. i() there is indicated only the shaft 55 and attached beveled gear54 of the gearing connections to the tool slide, theiremainde'r of theconnections being as shown in Fig. 21'.

To actuar@ the Vw01 slide asien the tool support 38, a horizontal shaft28]V is rotatably mounted on theY tool support, 38 (Figs. 9 to' 1l).At'rthe left-hand end of the' shaft 265, as 'shown in Figs. 9 and 1G,there is a beveled gear 20|, meshing with the gear Adjacent therighthand end of the shaft 280 is a pair of gears 4282'splined to andshiftable on the shaft. These gears may be shifted into engagement withgear 01 or gear E82 for the purpose of driving the shaft 280 in onedirection or the other'. gears 282 are arranged tobe shifted by means ofa yoke 203 carried on a horizontally slidable rod 28e on which rackteeth 205i are formed. A control handle 288 is pivoted on ahorizontalpin 201 and carries a segmental gear ,288 meshing with the rackteeth-205 to enable thefdesiredshifting of the gears 202.

The tool slides may be voperated.manually-by teeth |85 there- Y The . 8thehand wheels 62 when they handles 82 and84 are in their neutralpositions as shown; WhenVVV some of handles 82 to 85, |86 and 206 havebeen operatedto engage the drive controlled thereby, thecorresponding'tool supports or slides will be fed or traversed inaccordance with the position f of the clutches in the feed-traversemechanismv 50.. As shown in Fig. 13, thetraverse gear |00 isde-'clutched from the shaft 90` and from hollow shaft |42, and the feedclutch |03, |04 is engaged.

The traverse and feed clutches arecontrolled electrically in theform oftheA invention herein disclosed. As shown in Figs. 18 to 20, yoke2|0engages an annular groove 2|| in the gear |00, and is operable by meansincluding a link-212 which is connected to the yoke by a pin 2|3 and isalso connected by a pin 2 I4 to the upperend of a lever 2|5 which issupported intermediate its ends on one end of a'shaft 2|5. Thisl shaftisrotatably mounted in a bracket 2 1 which is secured to the casing|24'by screws 218 and is braced at its lower edge (Fig. 20) by'aspacingtube 2|9 and a long bolt 220. The bracket hasy alined cylindrical bores22| and 222 (Fig. 19) which receive cylindrical guide rods 223 and 224,one on the yoke 2|0 and the other on a yoke 225 for the feed clutch part|03. The pin 2|11 on lever'Y 2|5 carries a roller 226, and a pin 221extending from the lower end of the lever carries a roller 228. Anactuator 229r for theA feed clutch is secured at one end tothe feedclutch yoke 225by a headed screw 230, and extends to the left ytherefrom(Figs. 18 and 19). At its left-hand end the actuator 229 has atransversely extending vertical rib 23| which serves as an'abutment forthe rollers 226 and 228, the parts assuming the positions shown in Figs.18, 19 and 19a when 'the feed Y clutch is engaged by action of thespring |85.`

A horizontally extending lever 232 is securedrat vright angles to thelever 215 by screw/e233 and at itsends carries pins 234 and 235 whichconnect to the upper ends of links 236 and 231,1th'e lower e'nds ofwhich are connected to the armatures 238 andf239v of solenoids 240 and24|, re-

spectively. V

When the solenoid 240 is energized,- the armaturel 238 thereof is pulleddown and the levers 232 and 2|5l are rocked in a counter-clockwisedirection from the position of Figs. 18 Vand 19a.. Link rection so thelink'2l2 'acts to' pull the gear |00 to the right andV engage thetraverse clutch |0I, |02'. During this movement lof. the levers,Y thelower roller 228 acts'against the rib123l', and also moves the actuator229 to the left from the position shown in Figs. 18 and 19,' and againdiseny gaging the feed clutch |63, |04.

Thus, the feed clutch is 'normally engaged byV thespring |05 when thetraverse gear |00 is-in its neutral position,r as shown inthe drawings,`and when the traverse gear is shifted in' one direction or the otherfrom neutral, the feed clutch is disengaged by actuator 223'. Y Y Y. Y

Preferably, the' solenoid- 240 is controlled'by means includingv pushbuttons 250 and 25| (Fig. 1) on a Ypendant station 252, convenientlyvlocated atthe side` of the machine.: Thepush button 25| l also controlsswitch means for operating the traverse motor 302 in a direction toraise the cross rail 36, and the button 252l controls switch Vmeans forreversing the traverse motor to lower the cross rail, the simultaneousenergization of the solenoid 240 engaging the cross rail, elevatinerclutch i3?, |38. Solenoid 24| (which, when energized, engages thetraverse clutch Il, |02) is preferably controlled by push buttons 253and Y 254 simultaneously with their control of the traverse motor.Button 253 also controls switch means for running the traverse motor ina forward direction, and button 256 controls switch means for operatingthe traverse motor in a return direction, for the tool heads. Button 255is operable to stop a motor for operating the pumps for supplying fluidto the table and other actuating mechanisms, the starting of such motorbeing manually controlled.

With the preferred form of the invention as I disclosed herein, it iscontemplated that the tool slides will be provided with reversible toolholders carrying oppositely positioned cutting tools 4| (Figs. 1, 2 and21), one of which is effective to engage and cut the work when the table3| moves in a forward direction, and the other of which is arranged toengage and cut the work when the table moves in a return direction. Asillustrated in Fig. 21, the tool slide 45 has secured thereon a swivelbase 260 tegrally therewith a central, cylindrical hub 26| engaging in abore 262 in the slide. The base 266 carries a plurality of bolt devices263, the heads of which engage in a circular T-slot 264 in the slide 65,so that the base 266 may be turned through 360 of adjustment on theslide.

A tool holder 265 is pivotally mounted on a pair of laterally spacedbrackets 266 on the base 266 by means of a pivot 261, and is movablefrom the position shown in Fig. 21 (wherein the lefthand tool 4| is in acutting position) in a clockwise direction to place the right-handcutting tool 6| in a cutting position for the return stroke of thetable. The tool holder is arranged to be shifted between its twopositions by means of a piston 268, operating in a cylinder 269, thepiston being connected by means of a rod 210 to the upper end 27| of thetool holder 265. It is contemplated that the tool holder will be shiftedat the end of each stroke of the table 3| by connecting the oppositeends of the cylinder 269 to the forward and reverse cylinders of thetable, so that the right-hand end of the cylinder 269 will be connectedto the supply of the actuating fluid for the table when the table movesin its forward direction, and the left-hand end of the cylinder 269 willbe connected to the fiuid supply when the table moves in its returndirection.

As disclosed herein, the invention is embodied in a machine whichprovides for extremely convenient set-up and efficient operation. Anoperator standing adjacent the push button station 252 is within reachof the control handles 62, 83, etc., and by first moving the properhandle to the desired position he can then traverse the tool heads totheir starting positions by manipulating the buttons on station 252.Similarly, the tool heads on the columns may be adjusted to theirstarting positions. The operating handles |32 for adjusting the feedmechanism, as well as the hand wheel E24 for adjusting the stroke of'the feed mechanism, are all convenient to the operator in this sameposition. Similarly, the operator, by the use of the proper buttons 256and 25|, mayr raise and lower the cross rail 36,

whichv has formed in- `Upon setting up the machine for cutting inyveither one or both directions of movement of the table 3|, it iscontemplated that the table kwill reciprocate continuously until thecutting oper- 5 ation is completed; the tool heads during such cuttingoperation being fed along their supports at the end of the forwardand/or return movements of the table. Since the solenoids 240 and 24|are then cle-energized, the feed clutch |03, I 64 is engaged so as toeffect the necessary feed movements of the supports.

By providing continuous mechanical connections intermediate the .feedtraverse mechanism 56 and the tool supports, subject only to operationof the control handles 62, 83, etc., forselecting the tool supports tobe operated and their direction of movement, an extremely simplestructure is provided, all movements imparted to the tool support beingdetermined in the feed traverse mechanism 56. The control handles 82,83, etc., permit one or more of the tool supports to be adjusted or tobe connected to feed during operation of the machine- As disclosedherein, the feed traverse mechanism is also effective to raise and,lower the cross rail.

I claim as my invention:

1. In a planer, in combination, a reciprocatingr table, means forreciprocating said table, a tool support, a reversible tool holder onsaid support having forward and return cutting positions, and pressurefluid operated means for feeding said tool support and shifting the toolholder to its return cutting position at the end of the forward tablemovement, said pressure fluid operated means being operable to feed saidtool support and shift said tool holder to its forward cutting positionat the end of said table movement in a return direction. n

2. In a planer, in combination, a table, means for reciprocating saidtable, a tool support, means for feeding said tool support comprisingagpiston and cylinder device, a pair of racks reciprocable by saiddevice, a feed shaft, gearing intermediate one of said racks and saidfeed shaft including an overrunning clutch enabling said device toactuate the feed shaft when the piston moves in one direction in thecylinder and ineffective to actuate the feed shaft when the piston movesin the opposite direction, and gearing intermediate the other rack andsaid feed shaft including an overrunning clutch effective to operate thefeed shaft when the piston moves in the opposite direction andineffective to actuate the feed shaft when the piston moves in said onedirection.

3. A planer as defined in claim 2, having 'manual means selectivelyoperable to engage and disengage the gearing between said racks and feedshaft.

4. A planer'as defined in claim 2, having means 60 for adjusting thestroke of said piston and cylinder device.

' 5. In a planer as defined in claim 2, said piston and cylinder deviceincluding a hollow piston rod,

a fixed support disposed at one end of said de- (35 vice, a screwjournaled in said support but held against axial movement therein andextending in telescopic relation with said hollow piston rod, and a stopnut carried by said screw in position to engage the end of the pistonrod and adjustable by rotation to the screw for determining the strokeof the device and the feed movement imparted thereby to the feed shaft.

6. In a planer, in combination, a table, means for reciprocating saidtable, a tool support, means for feeding said tool support comprising apiston .and .cylinderl device, a feed shaft, Agearing v,intermediatevsaid device .and said `feed shaft -in- -cludingan overrunning clutchenabling .said deyice to actuate the feed shaft when the piston moves inone direction in .the cylinder and ineffeotive. to actuate the feedvshaft when the piston moves in the opposite direction, and gearing in-Aengagement with said support and adjustable lthereon toward and from thepiston to arrest ,its movement in one direction.

9. Ina planer, in combination, a table, means for `reciprocating thetable, a tool support, hydraulically operable means for feeding saidtool support at each end of the table movement, and means adjustable atwill for preventing operation of Said feeding means at one end of themove- Ament of the table when the table is reciprocated, whilepermitting operation of the feeding means at the other end of the tablemovement.

l0. In a planer, in combination, a table, means for reciprocating `Saidtable, a tool support, and means for feeding said tool supportcomprising a piston and cylinder device, a pair of oppositely facingracks slidably mounted one at each side of the cylinder, a piston rodextending from one end of the cylinder, a cross head on said piston rodconnecting said racks thereto for reciprocating them, a pair of pinionsmeshing with said I racks respectively, a feed shaft, a gear fixed onVsaid shaft, va pair of gears both meshing with said gear, `an,overrunning clutch connecting one of said pinions to one of said pairof gears lenabling the piston to actuate theV feed shaft when saidpiston moves in one direction, and a second overrunning Yclutchconnecting the other pinion to the other gear of said pair enabling thepiston to actuate the feed shaft further in the same direction ofrotation when the piston makes its return stroke.

l1; In a planer .as defined in' claim l0, one of said pinions beinglaxially slidable for disengagement from its respective rack and meansfor so shifting said pinion at will.

12. In a planer, in combination, a cross rail, a tool support thereon, atool slide on said support, a pair of splined shafts rotatably mountedon said cross rail, a feed-traverse mechanism, a vertical splined shaftextending from said feed-traverse mechanism and adjacent to said splinedshafts on thecross rail, a lpair of spur gears rotatably mounted on thecross rail adjacent said Vertical shaft. a beveled pinion splined onsaid shaft and meshing with beveled gears on said spur gears to drivesaid spur gears in opposite directions, pinions slidably splined on saidcross rail shafts, means for selectively engaging said pinions with `oneor the other rof said spur gears, a non-rotatablefeed screw on saidcross rail Yparallel to the splined shafts thereon, a revolvable nutcarried on said tool support engaging said feed screw,

gearing intermediate one of said cross rail splined shafts and said nut,and means carried on said .13001 support` and driven by ythe 'other-of,said splined, shafts fory actuating said tool slide.

.13. ,In `a y.planer having a Ycross railand--tool supports thereon,Vapluralityvof splined shafts rotatably mounted on saidcross rail, meansconnecting said .splined shafts lto actuate said tool supports Wheneverthe Asplined shafts are actu-L ated, and means foractuating said splinedshafts comprising a vertical shaft adjacentone Aend of the cross rail,power operated `meansfor,actuating said vertical Shaft intermittently atfeed Vrate .and separate power operated `means for actuating saidvertical shaft attraverse speed, a `lar of' spur -gears-,onsaid Grossrail and-driven in opposite directions from said vertical shaft, and

pinions on said cross rail shafts selectivelyren- .gageable with oneor'the otheref'said spur gears.

14. In a planer having a cross lrailand tool supports thereon, aplurality of splined shafts irotatably mounted on said cross rail, meansc onnecting said splined shafts to actuate said rtool supports, andmeans for actuating said splinedA shafts comprising a vertical shaftvadjacent one Aend-.of the cross rail, rmeans for actuating saidvertical shaft including a Vcylinder and .piston device with a positivestop adjustable to limit the stroke of said device, --a pair o fspurgears on said cross rail and driven in opposite directions from saidvertical shaft, and pinions onsaid cross Vrail shafts selectivelyengageablewithone or the other of said spur gears.

15. In a planer having a movable tool support' and a tool slide thereon,Yin combination, means for moving said supprha stationary feed screw, anut rotatably carried on said support andengaging said screw, a pair ofoppositely rotatable spur gears, means for driving said gears at feedand traverse rates, a :first pinion connected to drive said nut andshiftable into and out of engagementwith either of said spur gearsselectively, gearing for actuating saidr tool slide including a secondshiftable pinion selectively engageable and disengageable With said spurgears, and a control device for each of said shiftable pnions- Y 16. Ina planer, in combination, a column, a

tool support movably Vmounted thereon, a `tool slide on Said support, .afeed screw on said colv umn, a nut carried rotatably on said support andengaging said screw, a vertical splined shaft adjacent the column, meansfor driving said splined vshaft at feed and traverse rates, a beveledpinion splined on said shaft and rotatably mounted on said support so asto be movable therewith on said column, a pair of oppositely positionedbev- .eled gears engaging said pinion, spur gears carried on saidbeveled gears soaslto be driven in opposite directions by said pinion, afirstV shi-ftable gear engageable alternately with said spur gears,means'connecting said first shiftable gear to drive said nut, a secondshiftable gear also engageable alternately with said spur gears, andmeans driven by said second shiftable gear for actuating said toolslide.

17. In a'planer,l in combination, a frame element, a tool supportmovably mounted thereon, a

tool slide on said support, a feed 'screw in said frame element, a nutcarried rotatably on saidv oppositely positioned beveled gears engagingsaid pinion, spur gears carried on said beveled gears s as to be drivenin opposite directions by said pinion, a first shiftable gear engageablealternately with said spur gears, means connecting said first shiftablegear to drive said nut, a second shiftable gear also engageablealternately with said spur gears, and means driven by said secondshiftable gear for actuating said tool slide. l

18. A planer having, in combination, a column, a cross rail, a pluralityof tool supports on said column and cross rail, a splined shaft eX-tending adjacent said column, means for actuating said shaft at feed andtraverse rates, a feed screw in said column, a feed screw in said crossrail, a plurality of splined shafts on said cross rail, means on a crossrail tool support permanently connected to one of said splined shaftsand said screw for actuating the support when the splined shaft isoperated, a tool slide on said support, means permanently connected toanother of said splined shafts operable to actuate said tool slide whensaid shaft is operated, gearing intermediate said vertical splined shaftand said cross rail shafts selectively engageable to connect saidsplined shafts for forward or reverse rotation with respect to saidvertical shaft, gearing on said column-mounted tool support driven bysaid vertical splined shaft and selectively engageable to raise or lowersaid tool support, and means for actuating said vertical splined shaftat feed and traverse rates.

19. A planer having, in combination, a bed, a table slidable thereon,columns uprising on opposite sides of said bed, a cross rail slidablymounted on said columns, tool supports on said columns and cross rail,tool slides on said supports, feed screws extending vertically in saidco1- umns and operable to raise and lower said cross rail, means foractuating said feed screws simultaneously including a hollow shaftextending intermediate the lower ends thereof and through said bed,vertical splined shafts adjacent the columns for actuating the toolsupports thereon and their slides, means vfor driving said splinedshafts including a horizontal shaft extending between the lower endsthereof and through said hollow shaft, a gear loose on said horizontalshaft, means for clutching said gear to said horizontal shaft or to saidhollow shaft, means for driving said gear at a traverse rate, means foractuating said horizontal shaft at a feed rate including a feed clutch,spring means urging said feed clutch toward engaged position, a crankand link device for shifting said gear, a first solenoid oper-able toactuate said crank to shift said gear into clutching engagement withsaid hollow shaft, a second solenoid operable to actuate said crank toshift said gear into engagement with said horioperable to raise andlower said cross rail, means for actuating said feed screw including ahollow shaft, a vertical splined shaft adjacent the column for actuatingthe tool supports and their slides, means for drivingsaid splined shaftincluding a shaft extending through said hollow shaft, a gear loose onsaid shaft, means for 'clutching said gear to said shaft or to saidhollow shaft when the `gear is shifted, means for driving said gear at atraverse rate, means for1V actuating said shaft at a feed rate includinga feed clutch, means urging said feed clutch toward engaged position, acrank and link device for shifting said gear, a first solenoid operableto actuate said crank to shift said gear into clutching engagement withsaid hollow shaft, a second solenoid operable to actuate said crank toshift said gear into engagement with said shaft, and means operable bysaid crank to disengage said feed clutch except when said gear is in aneutral position.

21. A planer having, in combination, a bed, a table slidable thereon, acolumn uprising on one side of said bed, a cross rail slidably mountedon said column, tool supports on said column and cross rail, a rfeedscrew extending vertically in said column and operable to raise andlower said cross rail, means for actuating said feed screw including ahollow shaft, a vertical splined shaft adjacent the column for actuatingthe tool supports, means for driving said splined shaft including ashaft extending through said hollow shaft, a gear loose on said shaft,means for clutching said gear to said shaft or to said hollow shaft whenthe gear is shifted, means for driving said gear at a traverse rate,.means for actuating said shaft at a feed rate including a feed clutch,means urging said feed clutch toward engaged position, a crank and linkdevice for shifting said gear, a rst power-operated de-y vice operableto actuate said crank to shift said gear into clutching engagement withsaid hollow shaft, a second power operated device operable to actuatesaid crank to shift said gear into engagement with said shaft, and meansoperable l by said crank to disengage said feed clutch eX- cept whensaid gear is in a neutral position.

PAUL S. JACKSON.

